A specific form of noun class system that forms an agreement system with another aspect of language such as articles, adjectives, verbs and pronouns, is referred to as grammatical gender. The term noun class is sometimes used interchangeably with grammatical gender. Some of the prominent systems of gender contrast are masculine-feminine gender contrast, masculine-feminine-neuter gender contrast, animate-inanimate gender contrast and common-neuter gender contrast. In masculine-feminine contrast, nouns that indicate male persons or animals are of masculine gender and the nouns that denote only female persons or animals are of feminine gender. In cases where the gender of the noun is not specified, the sex is assigned in an arbitrary manner. This book contains some path-breaking studies in the field of grammatical gender. It will also provide interesting topics for research which interested readers can take up. This book includes contributions of experts which will provide innovative insights into this field.